I had to use up some Roma tomatoes from my plants, along with the basil, so did a bit of an experiment. Turned out pretty good, according to my husband anyway. LoL! You can prepare the tomato sauce in advance. Cook time does not include the time it takes to make the sauce. If you don't have a non stick skillet with an oven going handle, you can wrap the handle securely with aluminum foil so no part of the handle is visible. Works like a charm. Or a non stick baking dish will work too.